CN210021750U

CN210021750U - Rapid sample batch membrane-passing device for chromatographic analysis and detection

Info

Publication number: CN210021750U
Application number: CN201920828458.4U
Authority: CN
Inventors: 申茹; 徐英辉
Original assignee: HUIZHOU HEALTH VOCATIONAL COLLEGE
Current assignee: HUIZHOU HEALTH VOCATIONAL COLLEGE
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-02-07
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a quick sample batch membrane-passing device for chromatographic analysis and detection, which comprises a pressing plate, a filtering membrane and a bottom plate, wherein telescopic rods are all installed at four corners of the bottom plate, the upper end of each telescopic rod is fixedly connected with the bottom wall of the pressing plate, an electric telescopic column is arranged at the middle shaft of the bottom plate, a sample bottle placing table is fixedly arranged at the upper end of the electric telescopic column, a sample bottle placing hole is arranged on the sample bottle placing table, a sample bottle is half embedded in the sample bottle placing hole, a lower flat plate and an upper flat plate are sequentially arranged at the upper side of the sample bottle placing table from bottom to top, four corners of the upper flat plate and the lower flat plate are connected with the supporting rod, the lower end of the supporting rod is fixed on the bottom plate, a pipe hole is arranged on the upper flat plate, a syringe barrel is arranged in the pipe hole, a through groove for placing the filtering membrane is arranged on, the device improves the membrane passing efficiency and saves the working time of workers.

Description

Rapid sample batch membrane-passing device for chromatographic analysis and detection

Technical Field

The utility model relates to a chromatography detection device, concretely relates to chromatography detects crosses membrane device of usefulness.

Background

The filtration of samples is particularly important due to the precision of the chromatographic system and the accuracy requirements for the analysis of the results. Filtration can protect the chromatography system and the chromatography column, prolong the service life of the column, and improve the accuracy of data. The filtering can eliminate pressure fluctuations due to friction-generated particles and baseline fluctuations due to irregular impurities. The interference of the detection system due to the presence of bubbles can be eliminated.

The most use needle appearance filter to filter of current sample extract, even after taking sample extract with syringe section of thick bamboo, through disposable filtration membrane filtration, but this can only carry out single manual operation, the cost of labor is higher, prepare the problem that work is loaded down with trivial details, consuming time is hard and inefficiency when having the operation.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide quick chromatography detects with sample and cross membrane device in batches to can only carry out single manual operation, the cost of labor is higher, prepare the problem that work is loaded down with trivial details, hard and inefficiency consuming time when solving the operation.

In order to realize the purpose, the technical scheme of the utility model is that:

a rapid sample batch membrane passing device for chromatographic analysis detection comprises a pressing plate, a filtering membrane and a bottom plate, wherein telescopic rods are installed at four corners of the bottom plate, the upper end of each telescopic rod is fixedly connected with the bottom wall of the pressing plate, an electric telescopic column is arranged at the middle shaft of the bottom plate, a sample bottle placing table is fixedly arranged at the upper end of the electric telescopic column, a sample bottle placing hole is formed in the sample bottle placing table, a sample bottle is half embedded in the sample bottle placing hole, a lower flat plate and an upper flat plate are sequentially arranged on the upper side of the sample bottle placing table from bottom to top, the upper flat plate is positioned on the lower side of the pressing plate, four corners of the upper flat plate and four corners of the lower flat plate are connected with supporting rods, the lower end of each supporting rod is fixed on the bottom plate, a tube hole is formed in the upper flat plate, a syringe barrel is arranged in the tube hole, a through, the lower spigot of the filter membrane enters the sample bottle.

The through groove is the same as the main body of the filtering membrane in shape, the main body of the filtering membrane is embedded into the through groove, and the upper insertion opening and the lower insertion opening of the filtering membrane are both positioned outside the through groove.

The telescopic link is electronic hydraulic stem, and electronic hydraulic stem bottom links to each other with the bottom plate, and electronic hydraulic stem top links to each other with the press panel diapire, and electronic hydraulic stem is connected with the power electricity.

The telescopic link includes the dead lever that sets up on the bottom plate and the branch that sets up according to the clamp plate bottom, be provided with the cavity in the dead lever, the branch lower part sets up in the cavity, the branch lower extreme is provided with the spring, be provided with the fixed block on the diapire in the cavity, branch passes through the spring and is connected with the fixed block.

The syringe section of thick bamboo, filtration membrane and sample bottle be a plurality of, the number of syringe section of thick bamboo, filtration membrane and sample bottle equals.

The centers of the syringe barrel, the filtering membrane and the sample bottle are on the same vertical line.

The pressing plate is made of stainless steel materials.

The pore diameter of the pore on the upper flat plate is larger than the pipe diameter of the syringe cylinder and smaller than the diameter of the outer edge of the upper end of the syringe cylinder.

The bottom plate, the pressing plate, the sample bottle placing table, the upper flat plate and the lower flat plate are all set to be rectangular or square at the same time.

After the technical scheme is adopted, the utility model discloses following beneficial effect has:

in the chromatographic analysis detects, when carrying out batch sample and cross the membrane, put the syringe section of thick bamboo that the sample liquid was extracted on last flat board in proper order, place filter membrane and sample bottle on the platform with the sample bottle simultaneously down and place respectively in proper order, closely link well with syringe section of thick bamboo bottom and filter membrane's last interface, then make and press the pressure board down to move, press the piston on the syringe section of thick bamboo to the pressure board, make the piston down move, thereby make sample liquid pass through behind the filter membrane, get into in the sample bottle, thereby accomplish the filtration of sample liquid. When the utility model is used for filtering, because a plurality of sample liquids can be simultaneously operated at one time for filtering, compared with the prior art, only one sample can be filtered at one time, the membrane-passing efficiency is greatly improved, the operation is simplified, and the detection time is shortened; simultaneously, make the sample bottle put in order, the experiment operation is more normal reasonable, realizes crossing the membrane in batches and puts the integrated operation of sample bottle.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic structural view of a telescopic rod according to embodiment 1 of the present invention.

In the figure, 1 press plate, 2 bottom plate, 3 electric hydraulic rod, 4 electric telescopic column, 5 sample bottle placing table, 6 sample bottle placing hole, 7 sample bottle, 8 lower flat plate, 9 upper flat plate, 10 support rod, 11 pipe hole, 12 syringe barrel, 13 filter membrane, 14 through groove, 15 fixed block, 16 fixed rod, 17 spring, 18 support rod, 19 cavity.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and fig. 2, a rapid sample batch membrane passing device for chromatography detection comprises a pressing plate 1, a filtering membrane 13 and a bottom plate 2, wherein telescopic rods are installed at four corners of the bottom plate 2, the upper ends of the telescopic rods are fixedly connected with the bottom wall of the pressing plate 1, an electric telescopic column 4 is arranged at the middle shaft of the bottom plate 2, the electric telescopic column 4 is electrically connected with a commercial power supply, a sample bottle placing table 5 is fixedly arranged at the upper end of the electric telescopic column 4, a sample bottle placing hole 6 is arranged on the sample bottle placing table 5, a sample bottle 7 is half embedded in the sample bottle placing hole 6, a lower flat plate 8 and an upper flat plate 9 are sequentially arranged on the upper side of the sample bottle placing table 5 from bottom to top, the upper flat plate 9 is positioned at the lower side of the pressing plate 1, four corners of the upper flat plate 9 and the lower flat plate 8 are both connected with supporting rods 10, the lower end of the supporting rods, the tube hole 11 is internally provided with a syringe barrel 12, and the syringe barrel 12 is a disposable sterile syringe purchased from the market, and the needle of the syringe is pulled out. The lower flat plate 8 is provided with a through groove 14 for placing a filtering membrane 13, the filtering membrane 13 is placed on the through groove 14, the lower end of the syringe barrel 12 is connected with the filtering membrane 13 through a tube hole 11 of the upper flat plate 9, a lower insertion opening of the filtering membrane 13 enters the sample bottle 7, the filtering membrane 13 is a disposable syringe organic or water system solvent filter purchased from the market, and the commonly used specification is 0.22 mu m or 0.45 mu m.

The model of the electric telescopic column 4 is DX-TGA-50, and when the electric telescopic column 4 is purchased, the remote controller is provided, so that the electric telescopic column 4 can be controlled to operate. The use of the electric telescopic column 4 can move the sample bottle placing table 5 up and down, so that the sample bottle 7 can be placed and taken conveniently. The bracing piece 10 plays the supporting role to last dull and stereotyped 9 and dull and stereotyped 8 down, and the bracing piece 10 sets up and places the platform 5 outside at the sample bottle, ensures that the bracing piece 10 can not touch the sample bottle and place platform 5 to do not influence reciprocating of electronic flexible post 4.

The shape of the through groove 14 is the same as that of the main body of the filtering membrane 13, the main body of the filtering membrane 13 is embedded into the through groove 14, the upper insertion opening and the lower insertion opening of the filtering membrane 13 are both positioned outside the through groove 14, and the through groove 14 can fix the main body of the filtering membrane 13 well to prevent the filtering membrane 13 from moving and affecting the filtering efficiency.

As shown in fig. 3, the telescopic rod comprises a fixed rod 16 arranged on the bottom plate 2 and a supporting rod 18 arranged at the bottom of the pressing plate 1, a cavity 19 is arranged in the fixed rod 16, the lower part of the supporting rod 18 is arranged in the cavity 19, a spring 17 is arranged at the lower end of the supporting rod 18, a fixed block 15 is arranged on the bottom wall in the cavity 19, and the supporting rod 18 is connected with the fixed block 15 through the spring 17; when the pressing plate 1 is pressed, the support rod 18 is contracted by the spring 17 to move downwards, so that the pressing plate 1 moves downwards, the pressing plate 1 applies pressure to the piston rod in the syringe barrel 12, the piston rod moves downwards, so that the sample liquid enters the sample bottle 7 after being filtered by the filter membrane 13, and the filtration of a batch of sample liquid is completed. When no pressure is applied to the pressing plate 1, the rod 18 is moved upward by the elastic force of the spring 17, thereby restoring the pressing plate 1 to the original position.

The number of the syringe barrels 12, the number of the filter membranes 13 and the number of the sample bottles 7 are equal, and the centers of the syringe barrels 12, the filter membranes 13 and the sample bottles 7 are on the same vertical line.

The pressing plate 1 is made of stainless steel material; the bottom plate 2, the pressing plate 1, the sample bottle placing table 5, the upper flat plate 9 and the lower flat plate 8 are all simultaneously rectangular or square. In addition, the length and width of the pressing plate 1 are greater than those of the upper flat plate 9 or the lower flat plate 8, the length and width of the lower flat plate 8 are greater than those of the sample bottle placing table 5, and the telescopic rod is arranged outside the supporting rod 10, so that the up-and-down operation of the telescopic rod and the electric telescopic column 4 is not affected.

The aperture of the pipe hole 11 on the upper flat plate 9 is larger than the pipe diameter of the syringe barrel 12 and smaller than the diameter of the outer edge of the upper end of the syringe barrel 12, and is used for fixing the syringe barrel 12 and preventing the syringe barrel 12 from moving.

Example 2

This embodiment and embodiment 1 difference lie in, and the telescopic link that this embodiment provided is electronic

hydraulic stem

3, and 3 bottoms of electronic hydraulic stem link to each other with

bottom plate

2, and 3 tops of electronic hydraulic stem link to each other with pressing 1 diapire of pressing the board, and electronic hydraulic stem 3 is connected with the power electricity. By using the electro-hydraulic rod 3, the pressing plate 1 can be moved up and down freely, and the manpower consumption can be reduced. Totally, four electric hydraulic rods 3 are purchased, the model is TGE, the electric hydraulic rods 3 are all connected with a controller and a power supply, and the controller synchronously controls the electric hydraulic rods 3 to operate.

The working principle is as follows:

carry out batch sample when crossing the membrane, put syringe section of thick bamboo 12 of having extracted sample liquid on last flat board 9 in proper order, place filter membrane 13 and sample bottle 7 on the platform 5 with the sample bottle simultaneously down and place respectively in proper order, closely link well with syringe section of thick bamboo 12 bottom and filter membrane 13's last interface, then make and press 1 down to move of pressure board, press 1 piston on pressing syringe section of thick bamboo 12 of pressure board, make the piston down to move, thereby make sample liquid pass through behind filter membrane 13, get into in the sample bottle 7, thereby accomplish the filtration of a batch of sample liquid.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A rapid sample batch membrane passing device for chromatographic analysis detection is characterized by comprising a pressing plate, a filtering membrane and a bottom plate, wherein telescopic rods are installed at four corners of the bottom plate, the upper end of each telescopic rod is fixedly connected with the bottom wall of the pressing plate, an electric telescopic column is arranged at the middle shaft of the bottom plate, a sample bottle placing table is fixedly arranged at the upper end of the electric telescopic column, a sample bottle placing hole is formed in the sample bottle placing table, a sample bottle is half embedded in the sample bottle placing hole, a lower flat plate and an upper flat plate are sequentially arranged on the upper side of the sample bottle placing table from bottom to top, the upper flat plate is positioned on the lower side of the pressing plate, four corners of the upper flat plate and the lower flat plate are connected with supporting rods, the lower end of each supporting rod is fixed on the bottom plate, a tube hole is formed in the upper flat plate, a syringe barrel is arranged in the tube hole, a through groove for placing the, the lower spigot of the filter membrane enters the sample bottle.

2. The rapid mass spectrometry detection sample batch membrane passing device according to claim 1, wherein the shape of the through groove is the same as the shape of the main body of the filter membrane, the main body of the filter membrane is embedded into the through groove, and the upper insertion opening and the lower insertion opening of the filter membrane are both positioned outside the through groove.

3. The rapid sample batch membrane passing device for chromatographic analysis and detection according to claim 1, characterized in that the telescopic rod is an electric hydraulic rod, the bottom end of the electric hydraulic rod is connected with the bottom plate, the top end of the electric hydraulic rod is connected with the bottom wall of the pressing plate, and the electric hydraulic rods are electrically connected with a power supply and a controller.

4. The rapid sample batch membrane passing device for chromatography detection as claimed in claim 1, wherein the retractable rod comprises a fixing rod disposed on a bottom plate and a supporting rod disposed on a bottom of a pressing plate, a cavity is disposed in the fixing rod, a lower portion of the supporting rod is disposed in the cavity, a spring is disposed at a lower end of the supporting rod, a fixing block is disposed on an inner bottom wall of the cavity, and the supporting rod is connected with the fixing block through the spring.

5. The rapid mass spectrometry detection sample batch membrane passing device according to claim 1, wherein the number of the syringe barrels, the filter membranes and the sample bottles is equal.

6. The rapid mass spectrometry detection sample batch membrane device of claim 1, wherein the centers of the syringe barrel, the filter membrane and the sample bottle are on the same vertical line.

7. The rapid mass spectrometry detection sample batch membrane device of claim 1, wherein the pressing plate is made of stainless steel.

8. The rapid mass spectrometry detection sample batch membrane device of claim 1, wherein the pore diameter of the pore of the upper flat plate is larger than the diameter of the syringe barrel and smaller than the diameter of the outer edge of the upper end of the syringe barrel.

9. The rapid mass spectrometry detection sample batch membrane device according to claim 1, wherein the bottom plate, the pressing plate, the sample bottle placing table, the upper plate and the lower plate are all configured to be rectangular or square at the same time.